host field is
nil, this is a special form of address structure that indicates the [RFC5322] group syntax. If the
mailbox name field is also
nil, this is an end-of-group marker (semicolon in RFC-822 syntax). If the
mailbox name field is non-
NIL, this is the start of a group marker, and the mailbox
name field holds the group name phrase.
Returns the [RFC5322] address
display-name (or the mailbox
phrase in the RFC-822 grammar).
# File net-imap-0.3.4/lib/net/imap/response_data.rb, line 799
Returns the route from RFC-822 route-addr.
Generating this obsolete route addressing syntax is not allowed by [RFC5322]. However, addresses with this syntax must still be accepted and parsed.
# File net-imap-0.3.4/lib/net/imap/response_data.rb, line 806